46646404661 has 4 divisors (see below), whose sum is σ = 48151127424. Its totient is φ = 45141681900.

The previous prime is 46646404657. The next prime is 46646404697. The reversal of 46646404661 is 16640464664.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 46646404661 - 2² = 46646404657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46646404621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752361335 + ... + 752361396.

It is an arithmetic number, because the mean of its divisors is an integer number (12037781856).

Almost surely, 2^46646404661 is an apocalyptic number.

It is an amenable number.

46646404661 is a deficient number, since it is larger than the sum of its proper divisors (1504722763).

46646404661 is a wasteful number, since it uses less digits than its factorization.

46646404661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504722762.

The product of its (nonzero) digits is 1990656, while the sum is 47.

The spelling of 46646404661 in words is "forty-six billion, six hundred forty-six million, four hundred four thousand, six hundred sixty-one".